TITLE

Plasmonic mid-infrared beam steering

AUTHOR(S)
Adams, D. C.; Thongrattanasiri, S.; Ribaudo, T.; Podolskiy, V. A.; Wasserman, D.
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/17/2010, Vol. 96 Issue 20, p201112
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a metal/semiconductor beam steering device for use in the mid-infrared wavelength range. We demonstrate how changing the frequency of the incident light results in a smoothly varying shift in the angular distribution of the transmitted beam, and we present an analysis of the beam profile for a number of different wavelengths. Finally we verify that a similar steering effect is achieved with fixed frequency incident light and a modification of the permittivity of the semiconductor substrate, ultimately resulting in a 3° shift in the transmitted beam angle for minimal shifts in the semiconductor permittivity.
ACCESSION #
50827825

 

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